Sterically hindered acetyl group relaxat
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J. Crossley; M.A. Mazid; C.K. McLellan; P.F. Mountain; S. Walker
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Article
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1978
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Elsevier Science
โ 392 KB
Relaxation of the acetyl group through an angle limited by steric hindrance has been observed in 2,4,6-trimethylacetophenone and in 9-acetylphenanthrene. The enthalpy of activation for this process is less than that in acetophenone. A similar type of motion is possible in 1-acetylnaphthalene but the